package bean;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.ArrayList;

public class ScoreDTO {
	private ScoreVo vo;
	private Connection conn;
	
	// 페이지와 관련된 변수
	int listSize=5;  // 페이지당 표시되는 행수
	int blockSize=3; // 한블럭당 표시되는 페이지수
	int totSize=0;   // 전체 게시물의 갯수
	int totPage=0;   // 전체 페이지수
	int totBlock=0;  // 전체 블럭수
	int nowPage =1;  // 현재페이지
	int nowBlock=1;  // 현재 블럭
	int startNo=0 ;  // 리스트 목록의 시작 위치
	int endNo=0;     // 리스트 목록의 끝 위치
	int startPage=0; // 현재블럭에서 표시되는 시작 블럭번호
	int endPage=0;   // 현재블럭에서 표시되는 끝 블럭 번호
	
	public ScoreDTO() {
		conn = new MyOracle().getConn();
	}
	
	public boolean insert(){
		boolean b=false;
		String sql="insert into score(rno, mid, grade, point) "
				 + " values(seq_score_rno.nextval, ?,?,?)";
		try{
			PreparedStatement pst = conn.prepareStatement(sql);
			pst.setString(1, vo.getMid());
			pst.setString(2, vo.getGrade());
			pst.setInt(3,  vo.getPoint());
			int cnt = pst.executeUpdate();
			if(cnt>0) b=true;
			
			pst.close();
			conn.close();
		}catch(Exception ex){
			ex.printStackTrace();
		}
		
		return b;
	}
	public void page(){// 페이지관련 연산
		String sql="select count(*) cnt from score "
				+ " where mid like ? or exam like ? ";
		try{
			PreparedStatement pst = conn.prepareStatement(sql);
			pst.setString(1, "%"+ vo.getFind() + "%");
			pst.setString(2, "%"+ vo.getFind() + "%");
			ResultSet rs = pst.executeQuery();
			if(rs.next()){
				totSize = rs.getInt("cnt");
				//전체 페이지수
				totPage = (int)Math.ceil(totSize*1.0 / listSize);
				//전체 블럭수
				totBlock= (int)Math.ceil(totPage*1.0/ blockSize);
				// 현재 블럭
				nowBlock = (int)Math.ceil(nowPage*1.0 / blockSize);

				// 페이지의 시작과끝 번호
				endPage = nowBlock * blockSize;
				startPage = endPage-blockSize+1;
				// 게시물의 시작번호와 끝 번호
				endNo = nowPage* listSize;
				startNo = endNo - listSize + 1;
				// endPage, endNo 보정값 
				if(endPage > totPage) endPage = totPage;
				if(endNo > totSize) endNo = totSize;
				
			}
			
		}catch(Exception ex){
			ex.printStackTrace();
		}
	}
	
	
	public ArrayList<ScoreVo> select(){
		page();
		ArrayList<ScoreVo> al = new ArrayList<>();
		String sql = 
				  " select * from("
				+ "   select rownum rn, c.* from( "
				+ "     select * from score "
				+ "     where mid like ? or exam like ? )c "
				+ "   )b "
				+ " where b.rn between ? and ? ";
				
		try{
			PreparedStatement pst = conn.prepareStatement(sql);
			pst.setString(1, "%" + vo.getFind() + "%");
			pst.setString(2,  "%" + vo.getFind() + "%");
			pst.setInt(3, startNo);
			pst.setInt(4, endNo);
			
			ResultSet rs = pst.executeQuery();
			while(rs.next()){
				ScoreVo v = new ScoreVo();
				v.setMid(rs.getString("mid"));
				v.setGrade(rs.getString("grade"));
				v.setPoint(rs.getInt("point"));
				v.setRno(rs.getInt("rno"));
				al.add(v);
			}
		
			rs.close();
			pst.close();
			conn.close();
		}catch(Exception ex){
			ex.printStackTrace();
		}
		return al;
	}
	
	public ScoreVo selectOne(){
		ScoreVo v = new ScoreVo();
		String sql = "select * from score where rno=?";
		try{
			PreparedStatement pst = conn.prepareStatement(sql);
			pst.setInt(1, vo.getRno());
			ResultSet rs = pst.executeQuery();
			if(rs.next()){
				v.setMid(rs.getString("mid"));
				v.setGrade(rs.getString("grade"));
				v.setPoint(rs.getInt("point"));
				v.setRno(rs.getInt("rno"));
				v.setExam(rs.getString("exam"));
			}
			rs.close();
			pst.close();
			conn.close();
		}catch(Exception ex){
			
		}
		return v;
	}
	
	public boolean delete(){
		boolean b=false;
		String sql="delete from score where rno=?";
		try{
			PreparedStatement pst = conn.prepareStatement(sql);
			pst.setInt(1, vo.getRno());
			int cnt = pst.executeUpdate();
			if(cnt>0) b=true;
			
			pst.close();
			conn.close();
		}catch(Exception ex){
			ex.printStackTrace();
		}

		return b;
	}
	
	
	public ScoreVo getVo() {
		return vo;
	}
	public void setVo(ScoreVo vo) {
		this.vo = vo;
		this.nowPage = vo.getNowPage();
		this.nowBlock = vo.getNowBlock();
		
	}

	public int getListSize() {
		return listSize;
	}

	public void setListSize(int listSize) {
		this.listSize = listSize;
	}

	public int getBlockSize() {
		return blockSize;
	}

	public void setBlockSize(int blockSize) {
		this.blockSize = blockSize;
	}

	public int getTotSize() {
		return totSize;
	}

	public void setTotSize(int totSize) {
		this.totSize = totSize;
	}

	public int getTotPage() {
		return totPage;
	}

	public void setTotPage(int totPage) {
		this.totPage = totPage;
	}

	public int getTotBlock() {
		return totBlock;
	}

	public void setTotBlock(int totBlock) {
		this.totBlock = totBlock;
	}

	public int getNowPage() {
		return nowPage;
	}

	public void setNowPage(int nowPage) {
		this.nowPage = nowPage;
	}

	public int getNowBlock() {
		return nowBlock;
	}

	public void setNowBlock(int nowBlock) {
		this.nowBlock = nowBlock;
	}

	public int getStartNo() {
		return startNo;
	}

	public void setStartNo(int startNo) {
		this.startNo = startNo;
	}

	public int getEndNo() {
		return endNo;
	}

	public void setEndNo(int endNo) {
		this.endNo = endNo;
	}

	public int getStartPage() {
		return startPage;
	}

	public void setStartPage(int startPage) {
		this.startPage = startPage;
	}

	public int getEndPage() {
		return endPage;
	}

	public void setEndPage(int endPage) {
		this.endPage = endPage;
	}
	
	
	

}
